[12.09] The Binary System EG Cephei

Both photometric and spectroscopic observations have been
obtained of EG Cephei. Photometric and spectroscopic
observations were made respectively with the 24-inch and
40-inch telescopes at Mount Laguna Observatory. The
photometric measurements were made in the Stromgren uvby
system during 1989 and 1990. The Wilon-Devinney program was
used to model the system using all four light curves
simultaneously. The best photometric fit is for a detacted
system with spots and a mass ratio of 0.50. The temperatures
of the primary and secondary components are 8500 and 5707K
respectively. Preliminary analysis of spectra from Mount
Laguna Observatory did not reveal lines attributed to the
cooler companion. Future spectroscopic observations will at
least yield the velocity curve of the hotter star.